1. At last I (have done) all my homework: now I shall go out.
2. The building of the house (began) early in April.
3. The rain (has stopped) but a cold wind is still blowing.
4. We have already (solved) the problem.
5. He (came) a moment ago.
6. I have never (spoken) to him.
7. He has just (finished) his work.
8. It (was) very cold yesterday.
10. I (have not seen) him since 1987.